What technology does asciinema.org use?

We did not detect any specific technologies for asciinema.org in the latest scan.

Is asciinema.org secure (HTTPS)?

Yes. asciinema.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 10, 2026.

Who hosts asciinema.org?

asciinema.org is hosted on BRIGHTBOX-AS - Brightbox Systems Ltd, GB.

What is asciinema.org's SEO score?

asciinema.org scored 55/100 for SEO in the latest analysis (fair).

What is asciinema.org's overall website score?

asciinema.org has an overall SiteGraph score of 78/100, combining SEO, performance, security, and accessibility.

asciinema.org

Record and share your terminal sessions, the simple way - asciinema.org

Last scanned Jul 26, 2026, 11:49 AM

Overall score

Fair

Summary

This website is hosted on BRIGHTBOX-AS - Brightbox Systems Ltd, GB. SEO is fair (55/100) and accessibility is fair (70/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.

United Kingdom

Hosted on BRIGHTBOX-AS - Brightbox Systems Ltd, GB

Top issues to fix

10 issues found · 3 high priority

Missing Content-Security-Policy header
Security
Add a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing meta description
SEO
Add a ~150-character meta description to control your search-result snippet and lift click-through rate.
Over half of images are missing alt text
Accessibility
Add alt attributes to images — screen readers depend on them, and they help image SEO.
1 cookie without Secure/HttpOnly flags
Security
Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
Title longer than 60 characters
SEO
Shorten the title to under 60 characters so search results don't truncate it.
Missing canonical link
SEO
Add <link rel="canonical"> so search engines know which URL variant to index.

+4 more issues — details in the sections below.

SEO

7 issue(s) found

100

Performance

269 ms

Security

HTTPS & header checks

Accessibility

1 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Meta tags

Title: Record and share your terminal sessions, the simple way - asciinema.org
Description
Canonical
Language: en
Charset: utf-8
Viewport: width=device-width, initial-scale=1.0, shrink-to-fit=no
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

Hosting & CDN

Hosting provider: BRIGHTBOX-AS - Brightbox Systems Ltd, GB
CDN provider: —
IP address: 109.107.37.0
ASN: AS51059 (BRIGHTBOX-AS - Brightbox Systems Ltd, GB)

DNS records

Type	Value
A	109.107.37.0
AAAA	2a02:1348:ffff:ffff::6d6b:2500
MX	in1-smtp.messagingengine.com in2-smtp.messagingengine.com
TXT	keybase-site-verification=60WZXFtRgdDiRDpl1jfk0aFxRAhklOB7KSknsjJnZ24 v=spf1 include:spf.messagingengine.com ?all
NS	ns12.infomaniak.ch ns11.infomaniak.ch
CAA	—
CNAME	—
IPv6 support	Yes

TLS / SSL certificate

Version: TLS 1.3
Issuer: Let's Encrypt
Subject: asciinema.org
Valid from: Jul 12, 2026
Valid to: Oct 10, 2026
Days until expiry: 73
SAN domains: asciinema.org

Security headers

Strict-Transport-SecurityEnabled
Content-Security-PolicyMissing
X-Frame-OptionsEnabled
X-Content-Type-OptionsEnabled
Referrer-PolicyEnabled
Permissions-PolicyMissing

Compression: gzip · 1 cookie(s) observed

Content & assets

Headings

H1 4 · H2 4 · H3 7

Links

20 internal · 11 external · 0 broken

Images

8 total · 7 missing alt

Scripts / Styles

2 scripts · 1 stylesheets

JS / CSS size

317 KB · 61.3 KB

Page size

52.2 KB

Robots.txt & Sitemap

robots.txt: Found
Disallow rules: 3
sitemap.xml: Not found
URLs in sitemap: 0

SEO issues

Title longer than 60 characters
Missing meta description
Missing canonical link
Multiple H1 headings found
No structured data (JSON-LD) found
Missing OpenGraph tags
sitemap.xml not found

Scan details

Requested URL: https://asciinema.org
Final URL: https://asciinema.org
HTTP status: 200
HTTP version: HTTP/2
Response time: 268 ms
HTML size: 52.2 KB
Redirect chain: https://asciinema.org

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Frequently asked questions

What technology does asciinema.org use?: We did not detect any specific technologies for asciinema.org in the latest scan.
Is asciinema.org secure (HTTPS)?: Yes. asciinema.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 10, 2026.
Who hosts asciinema.org?: asciinema.org is hosted on BRIGHTBOX-AS - Brightbox Systems Ltd, GB.
What is asciinema.org's SEO score?: asciinema.org scored 55/100 for SEO in the latest analysis (fair).
What is asciinema.org's overall website score?: asciinema.org has an overall SiteGraph score of 78/100, combining SEO, performance, security, and accessibility.